Sash construction



Sept. 3, 1929.

P. WICHELHAUS SASH CONSTRUCTION Filed Aug. 5, 1927 INVEN TOR.

Patented Sept. 3, 1929.

UNITED STATES PAUL WICHELHAUS, or SYRACUSE, NEW YORK.

SASH CONSTRUCTION.

Application filed August 5, 1927. Serial No. 210,961.

This invention relates to a sash construction, particularly sashes having a cloth or wire or perforated metal screen or plate and has for its object a particularly extensible sash construction by which any number of duplicate units can be adjustably fitted together to fit window frames of different widths.

It further has for its object a particularly simple, efficient and economical construction by which the wire or fabric screening is secured to the sash member.

The invention consists in the novel features and in the combinations and constructions hereinafter set forth and claimed.

In describing this invention, reference is had to the accompanying drawings in which like characters designate corresponding parts in all the views.

Figures 1 and 2 are opposite side elevations of this sash or sash unit.

Figure 3 is an edge View of two sash units interfitted together.

Figure 4 is a sectional view on line 4-4, Figure 2.

Figure 5 is a View similar to Figure 4 illustrating the tightening strip before it is tightened in position.

Figure 6 is a sectional view on line 6-6, Figure 2, the tightening strip being shown in its position occupied before it is flattenedor tightened.

This extensible sash comprises generally, a plurality of sash units, each unit being a sash in itself and each unit having upper and lower rails which are duplicates of each other, each rail being formed with lengthwise oppositely disposed channels arranged side by side, one channel facing outwardly, the other inwardly, the inwardly facing channels of the rails of one unit being movable astride one of the walls of the outwardly facing channels of another unit and a screen secured to the sash members of each unit.

1 and 2 designate respectively the units and 3 designates the top and bottom rails; and 4, the end members or stiles.

The sash members 3 and 4 are struck up of sheet metal to form a base portion and a rounding bead along the inner edge of the base, the bead being preferably cylindrical and arranged substantiallytangent to the base portion.

5 designates the base portion of each rail 3; and 6 the cylindrical bead portion arranged substantially tangent to the base portion or to overhang the base portion as at 7; and each rail 3 is also provided with oppositely disposed lengthwise channels 8 and S), the channel 8 facing outwardly and the channel 9 facing inwardly and arranged on the side of the channel 8 farthest from the base plate 5 so that the channels have a common separating wall 10. The rails 3 including the channels 8, 9, base and bead 6 are preferably formed up of a single strip of sheet metal and also the base plate is preferably formed with an overhanging lip 11 spaced apart from the bead or toward its outer edge, this lip 11 being an offset in the bottom and side of the channel 8.

The end members or stiles 4 are unprovided with channels 8, 9 but are otherwise similar in construction to the rails 3. As seen in Figure 6, each stile includes a base 12 corresponding to the base 5, a head 13 corresponding to the head 6, and an overhanging lip 14 corresponding to the lip 11. The stiles at their ends fit over the ends of the rails as shown at 15, that is, the ends of the base flanges of the rails extend under the ends of the lips 14 of the stile, and the sash members are secured together at these corners in any suitable manner as by spot welding.

16 designates the screen, the margins of" which are stretched over the beads 6 and 13 and overlie the base portions or plates 5 and 12 of the rails and stiles. These margins are held in position by means for tucking them under the beads. The means here shown are tightening strips 17 and 18, the tightening strip 17 extending along the rails, and the strips 18 along the stiles. These strips 17 or 18 extend under the overhanging lips 11 or 14 at their outer edges and at their inner edges thrust against the margin of the screen 16 to tuck it under the bead 6 or 13 as shown in Figure 4, the strips being usually formed bowed in cross section and after they are placed with their outer edges under the lips 11 and 14, they may be flattened toward the base 5 or 11, and thus during the flattening operation tuck the screen under the bead. The strips 17 along the rails are preferably first placed in position and then the strips 18 along the stiles placed in position with their ends overlapping the ends of the strips 17 at the corners of the sash construction.

In operation, owing to the arrangement of the channels 8 and 9, duplicate sash units can be telescoped or fitted together to form an extensible sash of any width and owing to the construction of the stiles and rails, the screening can be assembled in a particularly simple and economical manner.

WVhat I claim is:

1. An extensible sash comprising a plurality of sash units, each unit having upper and lower rails, each rail being formed with lengthwise oppositely disposed channels arranged side by side with a separating wall common to both separating them, one channel facing outwardly and the other inwardly, the inwardly facing channels of the rails of one unit being movable astride the walls opposite said separating walls of the outwardly facing channels of another unit.

2. An extensible sash comprising a plurality of sash units, each unit having upper and lower slidably interfitting rails duplicates of each other, each rail being formed With lengthwise oppositely disposed channels arranged parallel to each other, one channel facing outwardly and the other inwardly, the inwardly facing channels of the rails of one unit being movable astride one of the walls of each outwardly facing channel of another unit.

3. An extensible sash comprising a plurality of sash units, each unit having upper and lower slidably interfitting rails duplicates of each other, each rail being formed of sheet metal with lengthwise oppositely disposed channels arranged side by side with a wall separating them common to both channels,

one channel facing outwardly and the other inwardly, the inwardly facing channels of the rails of one unit being movable astride the the head, a screen having its margins secured to the sash members and one margin extending over said head, and a tightening strip for tucking the margin of the screen under the head, the strip assuming a form conforming to the base portion and overlying the base and the margin of the screen and thrusting at its outer edge against the shoulder and at its inner edge extending under the bead.

5. A sash comprising sash members, one having a base portion and a bead along its inner edge and a shoulder spaced apart from the bead, a screen having its margins secured to the sash members and one margin extending over said head and a tightening strip for tucking the margin of the screen under the bead, the strip assuming a form conforming to the base portion and overlying the base and the margin of the screen and thrusting at its outer edge against the shoulder and at its inner edge extending under the bead, the base portion of the sash member being arranged substantially tangent to the bead and the strip thrusting against the-screen near the point of tagency of the base and the bead.

In testimony whereof, I have hereunto signed my name, at Syracuse, in the county of Onondaga, and in the State of New York, thisw26th day of July, 1927.

PAUL WICHELHAUS. 

